Composition of painting-cement.



i106. COMPOSITIONS,

COATING OR PLAST'C Cross Reference Patented June 30, 1903.

PATENT ()FFICE.

JOHANN SENFT, OF VIENNA, AUSTRIA-HUNGARY.

COMPOSITION OF PAINTING-CEMENT.

srncmxcanon forming part of Letters Patent No. 732,226, dated Jun so,1903.

Aplication filed August 20. 1902. Serial No. 120,381. (No specimeusJ Toall whom it may concern:

Be it known that I, J'OHANN SENF'T, a subject of the Emperor ofAustria-Hungary, residingat Seidelgasse No. 12, Vienna III, in theProvince of Lower Austria and Empire of Austria-Hungary, have invented anew and useful Composition of Painting-Cement for Wood, Metals, andBrickwork, of which the following is a specification.

My invention relates to the manufacturing of a painting-cement which canbe used with equally good success for coating wood, metals, andbrickwork, which has the essential advantage before all other cements inuse that puttying with the spatula is avoided, a tedious work requiringmuch time and skill, but necessary with any method of varnishing orpainting at present in use.

In order to manufacture the said paintingcement, the followingingredients are to be mixed in about the given proportions, viz:twenty-five per cent. white lead, 12.5 per cent. white or pure litharge,3.75 per cent. olish- 111 -varms1 composed of fossil resins, {as copalor am 5013) linseed-oil, and turpentine,

per cent. Bone-glue, 2.5 per cent gmtine-oil 2.5 per cent. otassiumsilicate, ten per cen siccative, fifteen per cent. roclI-lime and21.25per cent. water. This mixture forms a pulp after having Been groundon the colorgrinder and may be diluted with water at dis cretion. For amoderate coat W1 10 brush about one kilogram suffices for ten squaremeters.

This composition is a good-medium for I111- ing up the pores and rendersthe ground color superfluous, as it has itself enough covering capacityand working becomes therefore quicker and cheaper.

This cement is drying very quickly, becomes quite hard, but is notbrittle, so that it does not come off. It is fireproof and is easilypolished off with some sandpaper.

What I claim, and desire to secure by Letters Patent, is-

The herein-described composition of painting-cement quickly drying andrendering the 'ground color superfluous,cousisting of white lead, purelitharge, polishing-varnish, boneglue, turpentine-oil, potassiumsilicate, siccative, rock-lime and water in the proportions specifiedwhich ingredients are to be ground to pulp in a color-grinder.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

J OIIANN SENF'T.

Witnesses:

ALFRED SENF'I, ALvEsTo S. lIoouE.

#AGHIIHBT

